A $4 million heroin shipment was seized at Pearson Airport in February, the Canada Border Services Agency said in a statement Monday.

Border services found about 10.6 kilograms of the narcotic in luggage unloaded off a flight from Pakistan on Feb. 19, the statement said.

Officers identified several suspicious pieces of baggage and sent them for further investigation. Inside one, agents found yellow bundles filled with a narcotic that testing verified to be heroin.

“This seizure is a great success and further showcases the excellent teamwork involved in stopping the flow of illegal narcotics to our communities,” Goran Vragovic, the Canada Border Services GTA Regional Director, said in the statement.

“As always, I am proud of how diligently our officers work to fulfill the important role they play in keeping our borders safe,” Vragovic said.

The drugs were turned over to Peel police, who are conducting an investigation. No arrests have been made, Peel police said.

According to border services, officers in the GTA’s airports, postal and cargo facilities seized more than 132 kilograms of heroin worth an estimated $52.6 million in 2012. They also seized 97 kilograms of opium worth nearly $5.8 million.